Computer Associates BABWBR1151S40 User Guide - Page 78

Document Level Backup and Restore Benefits, Complete Messaging Single Instance Storage

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Document Level Backup and Restore Benefits Document Level Backup and Restore Benefits Document level backup and restore offers many benefits, including: ■ Complete Messaging Single Instance Storage--Traditional Brick level backups scan an Exchange Server mailbox-by-mailbox. They back up copies of individual message bodies and attachments as they arrive, without any regard for data that may have been backed up already and without accounting for the Exchange Server's ability to store only one copy of an attachment when it is sent to multiple people. This results in decreased speed and performance. Document level backup and restore solves this problem by providing complete single instance storage backups of attachments and message bodies. Document level backup checks to see whether each attachment and message body has already been backed up and backs up only one copy. ■ Push Agent Technology--Document level backup uses push agent technology to increase the efficiency of your backup jobs by processing the data at the remote client workstations rather than processing it all from the CA ARCserve Backup host server. This off loads the system resources from the CA ARCserve Backup host server and minimizes network traffic. Push agent technology operates on a "per job" request, which means the host server sends an entire list of files to the remote client at one time. The push agent then enables the remote client to take an active role in the process by pushing all of the requested files to the host server. (Without push agent technology, backup jobs for remote clients operate on a series of "per file" requests-the host server has to request files from the remote client one file at a time.) ■ Multi Threading--Document level backup lets you take advantage of the full capacity of multi CPU machines capable of concurrent operations. It does this by supporting up to 64 threads per storage group and an additional 64 threads in the public folder store for a maximum of 320 threads. This lets you make the most of your resources and increases performance. For information on how to configure the multi-threading settings number of threads and thread priority, see Configure the Agent For Document Level Backup and Restore (see page 22). ■ Multi Streaming Support--Document level backup lets you take advantage of the full capacity of multiple drives and high-speed RAID arrays capable of fast concurrent backups to multiple tapes. It does this by partitioning information into concurrent streams for parallel backups. 78 Agent for Microsoft Exchange Guide

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Document Level Backup and Restore Benefits
Document Level Backup and Restore Benefits
Document level backup and restore offers many benefits, including:
■
Complete Messaging Single Instance Storage--
Traditional Brick level
backups scan an Exchange Server mailbox-by-mailbox. They back up
copies of individual message bodies and attachments as they arrive,
without any regard for data that may have been backed up already and
without accounting for the Exchange Server's ability to store only one copy
of an attachment when it is sent to multiple people. This results in
decreased speed and performance.
Document level backup and restore solves this problem by providing
complete single instance storage backups of attachments and message
bodies. Document level backup checks to see whether each attachment
and message body has already been backed up and backs up only one
copy.
■
Push Agent Technology--
Document level backup uses push agent
technology to increase the efficiency of your backup jobs by processing the
data at the remote client workstations rather than processing it all from
the CA ARCserve Backup host server. This off loads the system resources
from the CA ARCserve Backup host server and minimizes network traffic.
Push agent technology operates on a "per job" request, which means the
host server sends an entire list of files to the remote client at one time.
The push agent then enables the remote client to take an active role in the
process by pushing all of the requested files to the host server. (Without
push agent technology, backup jobs for remote clients operate on a series
of "per file" requests—the host server has to request files from the remote
client one file at a time.)
■
Multi Threading--
Document level backup lets you take advantage of the
full capacity of multi CPU machines capable of concurrent operations. It
does this by supporting up to 64 threads per storage group and an
additional 64 threads in the public folder store for a maximum of 320
threads. This lets you make the most of your resources and increases
performance. For information on how to configure the multi-threading
settings number of threads and thread priority, see
Configure the Agent
For Document Level Backup and Restore
(see page 22).
■
Multi Streaming Support--
Document level backup lets you take
advantage of the full capacity of multiple drives and high-speed RAID
arrays capable of fast concurrent backups to multiple tapes. It does this by
partitioning information into concurrent streams for parallel backups.
78
Agent for Microsoft Exchange Guide